The 11th international conference on Direct Reactions with Exotic Beams (DREB2020) is part of the biennial series, which began in 1999 at MSU, East Lansing, at the initiative of physicists working in the field from MSU, IPN-Orsay, and FSU. The following meetings were held at Orsay (2001), Guildford (2003), East Lansing (2005), Wako (2007), Tallahassee (2009), Pisa (2012), Darmstadt (2014), Halifax (2016), and Matsue (2018). The scientific program is devoted to the latest experimental and theoretical research and developments in nuclear reactions with exotic nuclei. The topics will include the following subjects relevant to direct reactions:

• Nuclear astrophysics
• Spectroscopy of exotic nuclei, drip-line and unbound nuclei
• Nuclear force and Short-range correlations
• Advances in direct reaction theory
• New instrumentation for direct reaction studies
• Ab-initio methods for structure and reactions
• Clustering phenomena probed by nuclear reactions

ARENA 2020 is the 9th International Conference on Acoustic and Radio EeV Neutrino detection Activities, a series of events bringing together experts in the use of acoustic and radio techniques for the detection of ultra-high-energy cosmic rays and neutrinos. The new amazing discoveries reported from high-energy neutrino, gamma-ray and gravitational wave detectors have started the exciting era of multi-messenger astronomy, opening a new window to the most extreme universe. ARENA 2020 is the major bi-annual event for scientists to pioneer, develop and consolidate techniques for ultra-high-energy particle detection, paving the way to the future. ARENA 2020 is the major bi-annual event for scientists to pioneer, develop and consolidate techniques for ultra-high-energy particle detection, paving the way to the future. The workshop covers the following topics, comprising theory, simulation, and existing and future experiments:

• Ultra-high-energy (UHE) cosmic-rays and neutrinos, theory of production.
• Radio-detection of UHE neutrinos and cosmic rays.
• Acoustic detection of UHE neutrinos and cosmic rays.
• Experimental techniques of acoustic and radio detection.
• Radio emission from particle showers in dense media/air (theory and simulation)
• Related detection technologies (microwave, radar, ultrafast magnetic sensing...)
• Interdisciplinary relations: radio and acoustic techniques used in other fields of science.

Recent years have seen significant progress in the understanding of deformations of integrable string sigma models, their relation to non-abelian and Poisson-Lie duality, and their possible AdS/CFT interpretation in terms of non-commutative field theory. Moreover, these models can also be naturally recast in terms of double and exceptional field theory. As such, numerous interesting new connections between these different research areas are developing, promising to shed light on various important open questions.

The goal of this workshop is to bring together experts from the fields of

• Deformations of integrable models
• Worldsheet dualities and extended field theories
• Non-commutative and non-associative QFT
• Quantum integrable systems in gauge/gravity duality

to facilitate exchange of ideas, collaboration, and the development of new insights across these fields.

With STEALTH, we refer to signatures involving either small couplings, soft objects, or decays from new light resonances, all of these cases where the special features of LHCb can be particularly relevant, always bearing in mind that a BSM signal can easily carry more than one of these features. This includes, but is not limited to, dark sectors, ALPs, dark photons, Hidden Valley, light Higgses, light DM and in general BSM models with interesting signatures for LHCb not directly related to flavor physics. Provided that the current LHCb upgrade will be completed by the end of 2020, first months of the next year turn out to be the right time to organise such a workshop where all well-motivated models would be collected, and to plan the different search strategies before data is delivered again

LISA is a Laser Interferometer Space Antenna which is planned to be launched in 2034. It will observe gravitational wave signals in the lower frequency range compared to the ground based detectors with the peak sensitivity around several mHz. The typical measurement of LISA will consist of large number of overlapping signals, many of which will have high signal-to-noise ratios. LISA will observe, among others, such objects as Massive Black Holes merging with each other, small compact objects falling onto the Massive Black Holes in the centres of the galaxies and White Dwarf Binaries in our Galaxy. Therefore one of the challenges for the LISA data analysis will be the separation of the signals. I will present the approach to resolve this problem using Denoising Autoencoders. This idea was inspired by the performance of the similar methods on the separation of the different music instuments in a music piece. And as it is always said "Gravity is talking: LISA will listen", this method will be able to separate different components of the gravitational wave signal.

Primordial black holes can form in the early Universe from the collapse of cosmological perturbations after the cosmological horizon crossing. They are possible candidates for the dark matter as well as for the seeds of supermassive black holes observed today in the centre of galaxies. In calculations of spherically symmetric collapse, using a large curvature perturbation in the super horizon regime, the initial conditions are specified using the gradient expansion approximation in the long wave length limit. The non linear evolution is then simulated using a Lagrangian relativistic hydrodynamical code. If the perturbation is larger than a threshold depending on the equation of state and on the specific shape of the perturbation, a black hole is formed. In this talk I will discuss the dependence of PBH formation from the initial shape of the curvature profile showing the relation between the threshold amplitude and the steepness of the perturbation which is linked to the amplitude of the pressure gradients that are developing during the collapse. I will show how to derive the initial curvature profile form the shape of the inflationary power spectrum, which affects also the abundance of PBHs. Depending on the model, a proper calculation, using the shape of the power spectrum, shows that the abundance of PBHs might be significantly increased by several order of magnitudes compared to previous estimations.

Quantum Computation is becoming a viable alternative for high complexity problems, too hard to address in classical computation, with or without acceleration. Recently, Google has demonstrated that there are particular problems that can be solved efficiently on a quantum computer, while demanding prohibitively high resources in classical computation. Quantum Computation represents an important change of paradigm, where the concept of bit gets transformed into a quantum bit, or qubit, which affords for an enormous information storage and processing capacity. In this course, organized by the Instituto Galego de Física de Altas Enerxías (IGFAE) in collaboration with CESGA (Centro de Supercomputación de Galicia) the basic concepts of Quantum Computation will be introduced at a conceptual level. An abundant set of exercises will allow to acquire sufficient skill to develop your own quantum algorithms and circuits. The course will take place at IGFAE from 20th to 23rd of January 2020 and is aimed at reserchers, teachers, CIT

Iberian Strings 2020 is the eleventh annual meeting of the Spanish and Portuguese String Theory community, where recent developments in the field of supergravity, strings, branes and gauge theory are discussed. String theorists from outside the Iberian Peninsula are welcome to participate in the meeting.This conference series followed the "Workshop on Gravitational Aspects of Strings and Branes" and the "Northwest Strings" that Iberian String theorists had been organizing since the early 2000s. In this edition we will have invited lectures by:

• Elias Kiritsis (Crete U., APC Paris)
• Irene Valenzuela (Harvard U.)
• Joao Penedones (EPF Lausanne)
• José F. Barbón (IFT Madrid)

Heavy ion collisions at high energies can be used as an interesting way to recreate and study the medium of the quark-gluon plasma (QGP). We particularly investigate the jets produced in hard binary collisions and their interactions with a tentative medium. These jets were obtained numerically from the Monte-Carlo simulations of hard collisions using the KATIE-framework [1], where parton momenta within the colliding nucleons were described by means of transverse momentum distributions (TMD). The in-medium jet-evolution was simulated with MINCAS[2]: This is a Monte-Carlo implementation of an evolution equation by [3,4], which contains both medium-induced radiation, as well as elastic scattering off medium particles. We found that this combination yields a non-Gaussian broadening of transverse momentum. Numerically, the combination of KATIE and MINCAS allows us to make predictions for dijet-observables.

• [1] A. van Hameren, Comput.Phys.Commun. 224 (2018) 371-380
• [2] K. Kutak, W. Placzek, R. Straka, Eur.Phys.J. C79 (2019) no.4, 317
• [3] J.-P. Blaizot, F. Dominguez, E. Iancu, Y. Mehtar-Tani, JHEP 1301 (2013) 143
• [4] J.-P. Blaizot, F. Dominguez, E. Iancu, Y. Mehtar-Tani, JHEP 1406 (2014) 075

In the first part of the talk I am going to present results of calculations of cross section for production of di-jets in the formalism that accounts for formation of dense system of partons and takes into account effects of hard scale in colliding hadrons leading to overall broadening of the cross section. In the second part of the talk I am going to discuss effects of transversal momentum dependence in production of Drell-Yan pairs and central dijets.